One day, the inexperienced virgin brother Shinji and his younger sister Emiri's bodies were swapped. Shinji, now a gal, kisses another girl at his sister's workplace and is forced by a man to lose his virginity (is it really?)! Amidst the confusion between siblings, he is asked by his sister to accept her boyfriend and perform oral sex. Will they end up having love sex due to the brother's complex feelings?! What will become of the two of them, and how will fate play out?!
